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Green rectangular DDR4 memory module with gold contacts and black chips

HPE

HPE 726722-B21 32GB DDR4 LRDIMM accessory

SKU CH-MY8P-TD91P MPN 726722-B21

Adds 32 GB of DDR4 load-reduced ECC memory at 2133 MT/s for compatible HPE servers

  • 32 GB capacity supports large workloads
  • Load Reduced design lowers electrical load on the memory bus
  • ECC memory detects and corrects data errors
  • Registered signal buffering improves system stability
  • DDR4-2133 speed delivers 17000 MT/s bandwidth

32 GB DDR4 LRDIMM for server memory expansion

This 32 GB DDR4 load-reduced DIMM operates at 2133 MT/s and carries ECC and registered features for data integrity. It is built for HPE Gen9 and Gen10 Plus V2 servers including the DL360, DL325, DL345, DL365, DL380, DL385, DL560 and DL580. The single-module design lets administrators add capacity in precise increments.

Thermals noise and power in typical server workloads

Load-reduced architecture reduces electrical load on the memory bus, helping to keep power draw per module lower than standard quad-rank alternatives. Registered buffering and ECC operate without adding audible noise because the module has no moving parts. Thermal output scales with total installed capacity and system airflow rather than this specific part.

Upgrading from lower-capacity or non-ECC modules

This module replaces smaller DDR4 LRDIMMs or non-ECC UDIMMs when the platform requires registered ECC memory and higher density per slot. The jump is worthwhile when the server board supports quad-rank load-reduced DIMMs and the workload needs more memory channels populated without exceeding the memory-controller rank limit. It is not for systems that accept only unbuffered non-ECC memory or that lack DDR4-2133 support.

Highlights

  • 32 GB capacity supports large workloads
  • Load Reduced design lowers electrical load on the memory bus
  • ECC memory detects and corrects data errors
  • Registered signal buffering improves system stability
  • DDR4-2133 speed delivers 17000 MT/s bandwidth

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 726722-B21 LRDIMM and what step is often missed?

Align the notch with the slot key, press firmly until both latches click, then verify the module sits flush; the step often missed is running the server BIOS memory configuration utility so the system recognises the 32 GB capacity at 2133 MT/s.

What maintenance or replacement will the 726722-B21 need over its service life?

The module itself has no moving parts and requires no scheduled maintenance; replacement is only needed if a memory test reports uncorrectable ECC errors or if a future server upgrade demands a different DDR4 speed or rank configuration.

What limit appears first when the 726722-B21 runs under sustained load?

The DDR4-2133 bus speed and quad-rank organisation set the bandwidth ceiling; sustained workloads will hit the 2133 MT/s data-rate limit before thermal or capacity constraints become a factor.

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